tools/lto/Makefile

   1 ##===- tools/lto/Makefile ----------------------------------*- Makefile -*-===##
   2 #
   3 #                     The LLVM Compiler Infrastructure
   4 #
   5 # This file is distributed under the University of Illinois Open Source
   6 # License. See LICENSE.TXT for details.
   7 #
   8 ##===----------------------------------------------------------------------===##
   9
  10 LEVEL := ../..
  11 LIBRARYNAME := LTO
  12 LINK_COMPONENTS := all-targets core lto mc support
  13 LINK_LIBS_IN_SHARED := 1
  14 SHARED_LIBRARY := 1
  15
  16 EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
  17
  18 include $(LEVEL)/Makefile.common
  19
  20 ifdef LLVM_VERSION_INFO
  21 CXX.Flags += -DLLVM_VERSION_INFO='"$(LLVM_VERSION_INFO)"'
  22 endif
  23
  24 ifeq ($(HOST_OS),Darwin)
  25     # Special hack to allow libLTO to have an offset version number.
  26     ifdef LLVM_LTO_VERSION_OFFSET
  27         LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
  28                                             $(LLVM_LTO_VERSION_OFFSET))
  29     else
  30         LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
  31     endif
  32
  33     # set dylib internal version number to llvmCore submission number
  34     ifdef LLVM_SUBMIT_VERSION
  35         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
  36                         -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
  37                         -Wl,-compatibility_version -Wl,1
  38     endif
  39
  40     # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
  41     DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
  42     ifneq ($(DARWIN_VERS),8)
  43        LLVMLibsOptions    := $(LLVMLibsOptions)  \
  44                             -Wl,-install_name \
  45                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
  46     endif
  47
  48     # If we're doing an Apple-style build, add the LTO object path.
  49     ifeq ($(RC_XBS),YES)
  50        TempFile        := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)
  51        LLVMLibsOptions := $(LLVMLibsOptions) \
  52                           -Wl,-object_path_lto -Wl,$(TempFile)
  53     endif
  54 endif